few thoughts on the subject, some fork oils contains detergent that makes the oil
less shear load resistance now a fork has lots of shear load.
riders in warmer climate don't deal with this but those of us that ride in cold weather
some of the fork oils gets too thick in the cold weather.that's a harsh ride
the motorex oil is god in these aspects that they cost a few dollars more is trivial, that's cost of having a bike that works
later Per